Drier



J. 0. TENSFELDT.

DRIER.

APPLICATION m2o Nov. 13.1919.

Patented Aug. 17, 1920.

2 SHEETS-SHEET 1.

J. 0. TENSFELDT.

DRH-IR.

APPLICATwN mm Nov. 18.1919.

Patented Aug. 17, 1920.

2 SHEETS-SHEET 2.

UNITED STAT-Es" Jenn o. rENsrEL'nr, ornzeawoon Naw JERSEY.

" Damn.

-and has for its object to'provide a drier in which the air will be dried and heated eiliciently; and when heated, will be distributed in the machine in an elcent manner without loss of necessa energy.

The invention is illustrated in the accomp panying drawings, in which- Figure 1, is a plan view, with parts broken away, and parts lin section, of a drier constructed in accordance with my invention;

Fig. 2, is a side elevation of the same, with parts broken away;

Fig. 3, is a sectlonal view, on an enlarged scale, on the line 3 3 of Fig. 2' and Fig. 4, is a side view of a `drying cartridge I may use. p

4IIx/'the drawing, like numerals of reference refer to the same parts in each of th views.

In practice I provide a .chamber 5,

through which may be passed a conveyor 6 for the purpose of carrying the materlal to be dried 'throu h the chamber 5. Within the chamber 5 rovide the drying chamber li which the material `is carretu'rn chamber 9 adapted to receivethe air and moisture after passing over'the'material being dried.

I also provideI afan or blower 10, a heater 11, a flue 12 leadin from thechamber 9 to the blower anda ue 13 leading from the heater to the air distributer 8.

-The dr 'ng chamber proper may be provided wit slde doors 14vor the inspection ofthe material at different points.

The heated air' distributer lies wholly within the chamber 5 and comprises a main flue 15, which is divided as'shown in Fig. 1, at the outer end. vAt intervals along this flue I provide side arms or iues 16, the bottoms `of which are perforated at intervals, as clearly shown, the perforations 17 extending across the main ue so that the heated air is delivered at intervals alongI the distributer, and in a downward ,directiony on the material carried by the oonveyer. yI

Specication Vo! Letters Patent.

Patented Aug. 17, 1920.

Application led November 1B, 1919. Serial No. 338,833.

prefer, also, to provide a plurality of per- `forations 18 in the part 15 of the distributer.

The return flue 12 may be rovided with va door 19 for the admission o a drying cartridge 20, of any desired construction and material for the extraction of the moisture from the air taken from the material being dried before the air goes to the heater, and is reheated for use in the drier.

The heater is referably rovided with a as burner 21, ues 22, an a chimney 23. he air from the drier is adapted to pass around the flues, or tubes 22, to the top of the heater from whence it can pass to the flue 13, and from thence back to the distributer 8. The heating elect of the tubes, or llues 22, is reatly increased by mounting a .lug 24 in t e top of each tube, and prov1 lng a small passagewa 25 therethrou h so the products of combustion from the burninggas, and thp hot air will be held within the tubes in a baffled manner. I mayfalso mount a number of baille plates 26 wit 1n the heater, as will be understood.

The drier' may be mounted on a suitable frame 27 that it may be held at a desired heiht.

n operation, the material to be dried is carried through the drying chamber in the chamber 7 b the conveyer. The heated air is directed ownwardly upon this material,

and after covering the same the air passes outwardly, and thence throughthe perforations 28 to the chamber 9 beneath the material being dried so that heat is applied underneath the drying material as Well as directly'uponlthe same; and all the partsJ are carried within the chamber 5 so that there 1s no loss of heat after the air reaches the drier. As the moisture is extracted from the air before the same is reheated, nothing but 'heated`-air is delivered to the `materlal being dried; and that air is directed downwardly upon the material so pqvided with .perforations in the bottom the heated air` is delivered thereof Whereb d1 in a downward direction.

at intervals an 2. A drier comprising a chamber having mounted therein: a drying chamber a distributer of heated air, and a chamber beneath said drying chamber adapted to receive air from the same, said drier havin means connected therewith for heating an circulating air through said chamber, said distributer comprising a longitudinal `channel, and a plurality of side channels arranged at intervals and rovided with Vperforations in the bottom t ereof whereby the heated air is delivered at intervals and in a do`wnvvard direction.

3. A drier comprising a chamber having mounted therein-z a drying chamber, a distribute'rlof heated air, and a chamber beneath said dryin chamber adapted to receive moistened air from`the same said drier having means connected therewith for circulating the air'throu h said chamber, extracting the mo'sture rom the air2 and heating the air, sai distributer comprisinga longitudinal channel and a plurality of side channels arranged at intervals and provided with perforations the bottom thereof whereby the heated air is delivered at intervals and Tin a downward direction.

4 In a drier, an air distributer comprising a longitudinal channel, and a ,plurality of side channels arran ed at intervals, said distributer bein provi ed with perforations at intervals in t e bottom thereof coincident with the side channels and extending into the same, means to pass air through said distributer, and means to extract' the moisture from the air prior to passing through the distributer.-

5. A drier comprising a drying chamber, means*A to extract air from the same, means to etract the moisture from the air contained in said chamber, means to reheat the dried air, and means to distribute the heated airthrough the chamber comprising a' main channel traversing the dryin chamber,j and 'a plurality of side chann s ,oo mmuni'cating with the` main channel, said side channels being providedwth perfoi'ationsin the bottom thereof.

6. A'drier comprising a drying chamber and means to `pass the material to be dried, therethrough, a chamber beneath said dryin chamber ,and means to pass air from said drying chamber to the lower chamber, means to draw air from said lovvei` chamber, means to extract the moisture from said air,

'being perforated at intervals whereby comprising` a main c means to reheat the dried air, and meansl to distribute the heated air throu h the drylngchamber comprising a main c annel traversingthe dryin chamber, and a plurallty of side charme s communicating with the main channel, said side channels being provided with perforations in the bottom thereof.

7. A drier comprising a drying chamber, means to extract air from the same, means to extract moisture' from the air centaine 1n said chamber after extraction,A means to reheat the dried air, andmeans to distribute the heated air through the drying chamber comprlsmg a main channel entering the drying chamber centrally thereof and extending in both directions, and a plurality of side channels communicatin ,with the main channel, said side channelseing provided with perforations in the bottom thereof. y 8.`` A drier comprising a drying chamber, means to extract airfrom the same,1eans to extract the .moisture insaid air, means to reheat the dried air, and means to distribute the heated air through the drying chamber comprising a main channel; entering said drying chamber centrally thereof and extending in two directions tojvard the ends of the dr ing chamber, andsidefI channels on each si e of the main channel and in communication therewith, said side channels being provided with perforations in the bottom thereof, the bottom of the mainchannel the perforations in the main channel are in line with the perforations in the bottom of the side channels. v

9. A drier comprising a drying chamber, means to extract air from the same, means to eirtract moisture fromsaid air, means to reheat the dried air, and means to distribute thel'heated air throu h the dryin chamber endto en of the drying chamber and side channels in communication with the, main channel arran ed at intervals along eachside of the main c annel, said main channel and` side channels having perforations in the bottom thereof, said drier having doors arranged alon tbe sides k#meri-gef whereby access can be had to any part cf the drying chamber. A

Dated this 15th day of November, 1919;

JOHN O. TENSFELDT.

annel exten ing `from 

